Important Information for ACS Installation

Important Information for ACS Installation

  • Use 22/6 shielded cable for keypad readers.
  • Use 18/4 stranded for Fail-Secure locks and 18/6 for Fail-Safe locks within 100 feet.
  • Maximum reader cable length is 250 feet.
  • Power supply jumper is pre-set to 12VDC. Power down before changing, if needed.
  • Keypads must be installed no higher than 54 inches (to the top row of keys) above the floor if side reach is available. Otherwise, 48 inches is required.
  • Contact sensors are to be installed 6-8 inches from the hinges on the top of the door/header.
  • Multiple batteries can be used in series for longer backup durations.
  • Strikes should be set to 12v input only.
Expansion panel (MR52) expansion door number schema:

EP1501 – See “ACS 2 Door Wiring Diagram (1502)”.

EP1502 – MR52 panels wired in series (see "Expansion Panel Schema" for info on addressing):

Door 1 – 1502 Reader/Input/Strike 1

Door 2 – 1502 Reader/Input/Strike 2

Door 3 – MR52 (1) Reader/Input/Strike 1

Door 4 – MR52 (1) Reader/Input/Strike 2

Door 5 – MR52 (2) Reader/Input/Strike 1

Door 6 – MR52 (2) Reader/Input/Strike 2

Door 7 – MR52 (3) Reader/Input/Strike 1

Door 8 – MR52 (3) Reader/Input/Strike 2

Door 9 – MR52 (4) Reader/Input/Strike 1

Door 10 – MR52 (4) Reader/Input/Strike 2

Door 11 – MR52 (5) Reader/Input/Strike 1

Door 12 – MR52 (5) Reader/Input/Strike 2

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